Re: memory pool algorithms

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> That'll work ok, but you can skip the array of allocated/free element
> indices if the objects are small enough and you don't need pointers into
> them; just copy the "lastAllocated" element into the "newlyFreed" slot
> when freeing, and always stick onto the end of the array.

Ahh yes, the old particle system trick :)

> then clearly moving things around shouldn't be too terrible.  I believe
> keeping a parallel bitfield would be more straight forward than an
> unsorted array of free elements.

So with the parallel bit-field, each bit indicates whether the element has 
been allocated, and when you iterate over all elements you skip elements 
without a set bit?

Cheers, Paul.
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